1021316 has 6 divisors (see below), whose sum is σ = 1787310. Its totient is φ = 510656.

The previous prime is 1021303. The next prime is 1021327. The reversal of 1021316 is 6131201.

1021316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1000000 + 21316 = 1000^2 + 146^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1021316.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127661 + ... + 127668.

It is an arithmetic number, because the mean of its divisors is an integer number (297885).

2^1021316 is an apocalyptic number.

It is an amenable number.

1021316 is a deficient number, since it is larger than the sum of its proper divisors (765994).

1021316 is a wasteful number, since it uses less digits than its factorization.

1021316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255333 (or 255331 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1021316 is about 1010.6018009087. The cubic root of 1021316 is about 100.7055437070.

Adding to 1021316 its reverse (6131201), we get a palindrome (7152517).

The spelling of 1021316 in words is "one million, twenty-one thousand, three hundred sixteen".